Fish Casserole

User Reviews

5

21 reviews
Excellent
  • Prep Time

    5 mins

  • Cook Time

    40 mins

  • Total Time

    45 mins

  • Servings

    6

  • Calories

    287 kcal

  • Course

    Main Course

  • Cuisine

    American

Fish Casserole

This Fish Casserole features chunks of fish mixed with sautéed green onions, spinach, peas, and a thickened milk sauce flavored with Dijon mustard, nutmeg, and anchovies, topped with creamy mashed potatoes. Baked until golden and bubbling, it offers a hearty, comforting dish where mild fish melds with creamy, savory layers and tender vegetables.

Description

The Fish Casserole begins with peeled and boiled potato chunks mashed with a small amount of dairy-free butter and plant-based milk to create a smooth topping. Meanwhile, a sauce is prepared by cooking green onions in butter, then adding cornstarch and gradually whisking in more milk to form a thickened base. Dijon mustard, ground nutmeg, and finely chopped anchovy fillets are stirred in to provide depth of flavor. The fish pie mix, baby spinach, and peas are added to this sauce, which is then transferred to a baking dish and layered with the mashed potatoes on top. Baking in a preheated oven at 400°F for 25 minutes forms a golden, bubbling casserole.

The dish combines tender fish chunks with a creamy, slightly tangy sauce and soft vegetables, balanced by the fluffy mashed potato crust. The inclusion of anchovies enhances umami without a strong fishy taste, and nutmeg adds warmth. This casserole is filling and can serve as a substantial main course.

For best results, use similarly sized fish chunks to ensure even cooking, and fresh ingredients for flavor and texture. The casserole should be served hot and rested briefly after baking to allow flavors to meld. Adjust seasoning as preferred, and cover with foil if browned too quickly during baking.

Each serving has 7 WW Blue Plan SmartPoints, making it suitable for those tracking points. The recipe is versatile, allowing additional vegetables to be added if desired.

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Ingredients

Servings
  • 2 pounds potatoes peeled and cut chunks
  • 4 tablespoons dairy-free butter divided
  • 2 cups plant-based milk use ¼ cup for mashed potatoes; 1 ¾ cups for casserole
  • 2 teaspoons olive oil
  • 2 green onions finely sliced
  • 4 teaspoons corn starch
  • 1 teaspoon Dijon mustard
  • ½ teaspoon ground nutmeg
  • 4 anchovy fillet finely chopped
  • 1 ½ cups fish pie mix
  • 2 ½ cups spinach roughly chopped, baby
  • ½ cup peas 75g, frozen

Instructions

  1. Preheat the oven to 400 degrees F / 200 degrees C.
  2. Add the potatoes into some salted boiling water, bring back to the boil, reduce to a simmer cook until tender.
  3. When done, drain, let cool for a few mins and mash with a 4 tablespoons of milk and 2 tablespoons of dairy-free butter and set aside.
  4. Melt butter in a sauce pan, add green onions and cook for a minute, then add in cornstarch and cook for a minute.
  5. Slowly whisk in the milk, then bring to a rolling simmer while stirring continuously (to avoid any lumps) for 3 - 4 minutes until the sauce is thick.
  6. Switch off the heat, then stir in mustard, nutmeg, anchovies, fish pie mix, baby spinach and peas before transferring mix to a baking dish.
  7. Top with the mashed potatoes and bake for 25 minutes in the hot oven until golden and the mixture is bubbling.

Notes

  • Cut fish into uniform chunks to ensure even cooking in the casserole.
  • Use fresh fish, vegetables, and herbs for optimal flavor and texture.
  • Season each layer with salt, pepper, and preferred spices to enhance taste.
  • Select a baking dish that comfortably fits all ingredients without overflowing.
  • Preheat oven fully to 400°F before baking the casserole.
  • If the top browns too fast, cover with foil partway through baking to prevent overbrowning.
  • Let the casserole rest after baking for easier slicing and flavor melding.
  • Serve the casserole hot, timing meal preparation accordingly.
  • Adjust quantities or bulk up with vegetables if using less fish.
  • This recipe provides 7 WW Blue Plan SmartPoints per serving.

Nutrition Information

Show Details
Calories 287kcal (14%) Carbohydrates 31g (10%) Protein 17g (34%) Fat 11g (17%) Saturated Fat 2g (10%) Polyunsaturated Fat 3g (18%) Monounsaturated Fat 5g (25%) Trans Fat 1g (50%) Cholesterol 31mg (10%) Sodium 232mg (10%) Potassium 939mg (20%) Fiber 5g (20%) Sugar 2g (4%) Vitamin A 1310IU (26%) Vitamin C 39mg (43%) Calcium 147mg (15%) Iron 2mg (11%)

Nutrition Facts

Serving: 6Serving

Amount Per Serving

Calories 287 kcal

% Daily Value*

Calories 287kcal 14%
Carbohydrates 31g 10%
Protein 17g 34%
Fat 11g 17%
Saturated Fat 2g 10%
Polyunsaturated Fat 3g 18%
Monounsaturated Fat 5g 25%
Trans Fat 1g 50%
Cholesterol 31mg 10%
Sodium 232mg 10%
Potassium 939mg 20%
Fiber 5g 20%
Sugar 2g 4%
Vitamin A 1310IU 26%
Vitamin C 39mg 43%
Calcium 147mg 15%
Iron 2mg 11%

* Percent Daily Values are based on a 2,000 calorie diet.

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Overall Rating

5

21 reviews
Excellent

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